Abstract
The witches' broom is one of the most important diseases that affect the cocoa tree (Theobroma cacao), caused by the basidiomycete Moniliophthora perniciosa and characterized by symptoms of swelling and induction of shoots on infected branches. The Solanum lycopersicum (Syn. Lycopersicon esculentum), also host of the fungus M. perniciosa, has a miniature cultivar 'Micro-Tom' (MT), which p…